Global Fire Gekko - Battery Requirements

Global Fire Equipment // globalfire.pt
ma_gekko_01_010002_en_190522
BATTERY REQUIREMENTS
The battery AH required are calculated from the following formula:
(
Quiescent current in mA of
the panel with everything
connected
X
Standby time required in
hours divided by 1000
)
+
(
Alarm current in Amps
(sounder load)
X
Alarm time in hours
)
+ 20%
Round up to the next available battery size.
Quiescent currents for individual equipments are listed below:
EQUIPMENT
QUIESCENT CURRENT
(mA)
ALARM CURRENT
(mA)
GEKKO Panel
65
85
24 V auxiliary outputs (2 OFF)
Refer to connected devices
-
NOTE:  In 2 to 4 loop panels use 7 AH batteries.
Example: A given installation has a single loop panel with 58 mA detector load, 1.4 A sounder load (including loop
sounders) and a 24 hour standby requirement.
(
Quiescent current in mA
of the panel with
everything connected
X
Standby time
required in hours
divided by 1000
)
+
(
Alarm current
in Amps
(sounder load)
X
Alarm time
in hours
)
+20%
65 (GEKKO)
+
58 (detector load)
24
(standby in hrs)
divided by 1000
85 (GEKKO)
+
58 (detector load)
0.5
(alarm time in
hrs)
(
↓
=
↓
=
)
+
(
=
143 mA +1.4 A
(sounder load)
=
↓
=
)
123 mA
X
0,024 H
1,543 A
X
0,5 H
=
2,952 AH
+
=
0,772 AH
= 3,724 AH +20% (0,722 AH) = 4,446 AH
The next available battery size is 5 AH
7